There are six different classes of tank in Metal Waltz: Light tanks; Medium tanks; Heavy tanks; Tank destroyers; SPG/Artillery and Armoured cars. Each class has its own strengths and weaknesses and must be used strategically for good result.
Light tanks are fast and agile, with better chances to dodge enemy attacks. However, they have short range and weak armor which makes them vulnerable to heavier tanks and artillery, especially at longer distances. They're more effective at close distances.
Medium tanks are a balance of light tanks and heavy tanks: good armor and firepower, with greater range but are not as fast as light tanks. However, they are versatile units and can be paired with any class for both effective attacks and defense.
Heavy tanks have strong armor and have better chances of resisting enemy attacks compared to other classes. They also have strong firepower and can quickly disable other tanks. However, this makes them major targets and can be destroyed easily unless they're assisted properly by other tanks.
Anti-Tank Guns (Tank Destroyers)
They possess strong firepower and abilities capable of taking out other tanks, but can be easy targets without proper support. The only tanks that were historically designated as tank destroyers are the M18 Hellcat and the M10 Wolverine, but they do not fit this category as they were able to pull hit-and-run operations.
Self-Propelled Guns (SPGs)
They have the highest firepower and longest range in the game. This makes them deadly units capable of taking out units quickly and easily. However, they're slow and vulnerable to enemy attacks especially at closer distances.
Light Armoured Vehicles (LAV)
Light Armored Vehicles (LAV) have poor armor and weaker firepower compared to light and medium tanks. But they're very fast, with better chances of dodging enemy attacks and dealing critical hits at closer distances. Equipping a Cabin and/or Armrest will increase their damage output as these vehicles historically carried infantry to the frontlines.